EP1444554A2 - Anzeigevorrichtung für eine armbanduhr - Google Patents
Anzeigevorrichtung für eine armbanduhrInfo
- Publication number
- EP1444554A2 EP1444554A2 EP02769834A EP02769834A EP1444554A2 EP 1444554 A2 EP1444554 A2 EP 1444554A2 EP 02769834 A EP02769834 A EP 02769834A EP 02769834 A EP02769834 A EP 02769834A EP 1444554 A2 EP1444554 A2 EP 1444554A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- display device
- display element
- window
- dial
- luminescent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B19/00—Indicating the time by visual means
- G04B19/30—Illumination of dials or hands
- G04B19/32—Illumination of dials or hands by luminescent substances
Definitions
- the invention relates to a display device for a wristwatch with a luminescent surface for the backlighting of a display element.
- Such watches have the advantage that they can be designed purely mechanically and therefore do not need an energy source such as a battery and / or a solar cell for their function. With these analog clocks there is now the problem of making the display visible in the dark. On the one hand, a battery or rechargeable battery can be provided for this purpose, with which a lighting unit is supplied with energy.
- US 6,208,591 uses a luminescent layer which is arranged in and under the then transparent dial. This luminescent layer illuminates the hands of the watch from behind. However, it is not possible to make additional digital information of the watch readable in the dark.
- wristwatches are often provided exclusively with a digital representation of time units.
- Such clocks require a power source.
- the invention is based on the object of designing a display device of the type mentioned at the beginning in such a way that the digital time display is also visible in the dark.
- the fact that only the area behind the window on the dial is covered with the luminescent material can ensure that this is constantly charged when the watch is worn, as long as the watch is not covered by clothing.
- the numbers appearing in the window are either embedded in a transparent pane or they consist essentially of a punched-out material which is only connected to one another via thin connecting webs. This has the advantage that only in the area of this window the considerable thickness of the luminescent material has to be taken into account, but the number disks that carry the digital time indicator units are made very thin in the usual way. can be designed.
- FIG. 1 shows a schematic plan view of a wristwatch with a digital date function according to a first exemplary embodiment of the invention
- FIG. 2 shows a schematic plan view of a wristwatch with a digital chronometer function according to a second exemplary embodiment of the invention
- FIG. 3 shows an exploded view with a schematic representation of the area 1
- FIG. 4 shows an exploded view with a schematic representation of the area around the window in the second exemplary embodiment according to FIG. 2.
- FIG. 1 shows a top view of a wristwatch with a dial 1, hour hand 2, minute hand 3 and second hand 4. Furthermore, two windows 5 and 15 are provided, in which the current day, here the number 15 for the fifteenth day of the month, and here the letters "Sat" for the current day of the week (Sat for Saturday, Saturday) can be seen.
- the display elements are provided with the reference symbol 42. It is of course also possible to provide only one window 5 Area of the window or windows 5, 15 is shown in the detailed drawing of FIG. 3.
- Fig. 2 shows another wristwatch, the chronometer is designed. Identical features are identified in all figures with the same reference symbols. 2 also has the hour, minute and second hands 2, 3, 4. A further coaxial second hand 14 is provided for the chronometer function.
- the stopped minutes can be seen in the window 25 (here eight minutes) and the stopped and elapsed time in hours (here one hour) can be seen in the window 35 arranged next to it.
- the pointers 2, 3 and 4 and also 14 in the exemplary embodiments according to FIGS. 1 and 2 are each provided with conventional luminescent coatings 8, so that the pointers can also be read in the dark.
- the windows 5 and 15 or 25 and 35 are designed in accordance with the invention in order to make the alphanumeric characters there readable even in the dark, this being described in more detail using two exemplary embodiments in connection with FIGS. 3 and 4.
- FIG. 3 shows a schematic exploded view of a first exemplary embodiment for representing the number “8” in window 5.
- the design for windows 15, 25 and 35 can be identical and identical.
- the window 5 is an opening, here of a square type, in the dial 1.
- At least one disk 21, preferably rotating about the pointer axis, is arranged under the dial 1.
- An essentially square section is shown here, which is exposed to light through the surface of the window 5.
- One disc 21 must be provided for each display unit, i.e. two disks for day of the week and date, three disks for hours, 10 minutes and minutes with a chronometer function.
- This disk 21 shown here by way of example, consists of a region 23 of transparent material in the interior 25 thereof an opaque display element, here the number “8”, provided with the reference symbol 22, is arranged on the surface at the top 24 or at the bottom 26, preferably at the top 24.
- an opaque display element here the number “8”, provided with the reference symbol 22
- the area occupied by the luminescent material 29 is advantageously somewhat larger than the opening of the window 5, so that even oblique light through the window 5, which passes through the pane 21, illuminates edge regions of the luminescent material and thus also charges them.
- the pane 21 is highly transparent and has a slightly diffuse effect on its underside 26, so that regardless of the area covered by the display element 22, the partial areas of the surface 29 which receive light directly below the display element 22 also receive light.
- the largest part of the area 29 is illuminated, so that the (dark) display element 22 can be read when the light is bright against the light background, and in the dark as a negative to the light radiating element 29 becomes visible.
- FIG. 4 shows another embodiment of the invention, the window 5 in the dial 9 and the luminescent covered area 29 in the area 19 being the same.
- the difference from FIG. 3 lies in the type of display elements, here provided with the reference symbol 32.
- the display element 32 here the number "0" is connected via small webs 33 to a support structure 34 which, so to speak, replaces the disk 21, which, whenever an alphanumeric character, here a number, is displayed, is outside the window 5.
- the carrier structure can be connected to the inner region of the carrier via a radial connecting web 35. All of the webs 33, 34 and the symbol 32 are designed to be very thin and, for reasons of simplification, are shown two-dimensionally without thickness.
- the light entering through the window 5 can thus act on the luminescent surface 29 unhindered, with the exception of the region covered by the display element 32.
- All of the webs 33 and / or the support structure 34 can be made transparent and only the display element 32 is opaque or is made of the same transparent material as the webs 33 but coated with an opaque material.
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH20732001 | 2001-11-12 | ||
CH207301 | 2001-11-12 | ||
PCT/CH2002/000592 WO2003042764A2 (de) | 2001-11-12 | 2002-11-04 | Anzeigevorrichtung für eine armbanduhr |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1444554A2 true EP1444554A2 (de) | 2004-08-11 |
EP1444554B1 EP1444554B1 (de) | 2009-12-16 |
Family
ID=4567398
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02769834A Expired - Lifetime EP1444554B1 (de) | 2001-11-12 | 2002-11-04 | Anzeigevorrichtung für eine armbanduhr |
Country Status (7)
Country | Link |
---|---|
US (1) | US7366059B2 (de) |
EP (1) | EP1444554B1 (de) |
JP (1) | JP2005509863A (de) |
AT (1) | ATE452354T1 (de) |
DE (1) | DE50214107D1 (de) |
HK (1) | HK1065862A1 (de) |
WO (1) | WO2003042764A2 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1526415B1 (de) * | 2003-10-24 | 2011-06-29 | Daniel Roth et Gérald Genta Haute Horlogerie SA | Datumanzeiger für eine Uhr |
DE20317328U1 (de) * | 2003-11-09 | 2004-01-22 | Schnell-Waltenberger, Alexander | NightDate, Anzeige von Datum, Wochentag, Monat oder Weckzeit bei Uhren |
DE102010000749A1 (de) * | 2010-01-05 | 2011-07-07 | Lange Uhren GmbH, 01768 | Uhr |
EP2717104B1 (de) * | 2012-10-04 | 2015-07-29 | The Swatch Group Research and Development Ltd. | Beleuchtung eines Datumsmechanismus |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2502985A (en) * | 1945-05-08 | 1950-04-04 | Bernard J Paulson | Clock |
US3156990A (en) * | 1961-07-07 | 1964-11-17 | Amy J Dock | Time and weather indicator |
US3270201A (en) * | 1964-03-03 | 1966-08-30 | George K C Hardesty | Photo-luminescent display means |
US3729922A (en) * | 1971-07-02 | 1973-05-01 | Clinton Watch Co | Timepiece |
CH660663GA3 (de) * | 1984-12-14 | 1987-06-15 | ||
US5746501A (en) * | 1995-09-01 | 1998-05-05 | Chien; Tseng Lu | Portable object having a fastening band illuminated by a super thin lighting element |
JPH1026670A (ja) * | 1996-07-12 | 1998-01-27 | Casio Comput Co Ltd | 発光装置及び発光装置を備えた時計 |
US5805533A (en) * | 1996-09-12 | 1998-09-08 | Timex Corporation | Electroluminescent display for a timepiece |
JPH1195698A (ja) * | 1997-09-19 | 1999-04-09 | Casio Comput Co Ltd | 発光装置、時計、電子機器、発光装置の製造方法 |
-
2002
- 2002-11-04 US US10/494,855 patent/US7366059B2/en not_active Expired - Fee Related
- 2002-11-04 DE DE50214107T patent/DE50214107D1/de not_active Expired - Lifetime
- 2002-11-04 JP JP2003544533A patent/JP2005509863A/ja active Pending
- 2002-11-04 WO PCT/CH2002/000592 patent/WO2003042764A2/de active Application Filing
- 2002-11-04 EP EP02769834A patent/EP1444554B1/de not_active Expired - Lifetime
- 2002-11-04 AT AT02769834T patent/ATE452354T1/de not_active IP Right Cessation
-
2004
- 2004-11-02 HK HK04108615.4A patent/HK1065862A1/xx not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO03042764A3 * |
Also Published As
Publication number | Publication date |
---|---|
US20050018545A1 (en) | 2005-01-27 |
HK1065862A1 (en) | 2005-03-04 |
DE50214107D1 (de) | 2010-01-28 |
US7366059B2 (en) | 2008-04-29 |
EP1444554B1 (de) | 2009-12-16 |
WO2003042764A3 (de) | 2003-08-07 |
JP2005509863A (ja) | 2005-04-14 |
ATE452354T1 (de) | 2010-01-15 |
WO2003042764A2 (de) | 2003-05-22 |
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